BNC PLUG TO DOUBLE BNC JACK 1> copper or zinc bnc adaptor. 2>,Nickel or plated 3>,Also has 50OHM or 75OHM 4>,material :RoHs BNC PLUG TO DOUBLE BNC JACK1> copper or zinc bnc adaptor.2>,Nickel or plated 3>,Also has 50OHM or 75OHM4>,material :compliant RoHs BNC PLUG TO DOUBLE BNC JACK